Since the priest is gone and psychic is not in all games, sometimes a lot of info from dead people is lost. My suggestion is to make an ability for dead people.
Day ability: Ghostly echoes
Can only be used once per game. To use this, at least three dead people have to click on the ability icon. The first person to click on the ability icon will be able to send a single message to the living. They will not know who sent the message.
This ability would work similar to the psychic, the game only tells you a dead person is talking, but won’t tell you who it is, so for example dead unseen could use it to trick the living.